Question

प्रूफ कीजिए
sin tetha + cos tetha = 1​

Answer 1

Answer:

$\sin( \alpha ) = \frac{p}{h} \\ \cos( \alpha ) = \frac{b}{h} \\ then \: from \: \: lhs \\ {sin}^{2} \alpha + {cos}^{2} \alpha = \frac{ {p}^{2} }{ {h}^{2} } + \frac{ {b}^{2} }{ {h}^{2} } = \\ \frac{ {p}^{2} + {b}^{2} }{ {h}^{2} } = \frac{ {h}^{2} }{ {h}^{2} } = 1 \\ proved.$